<!DOCTYPE html>
<html lang="cn">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>DHT IP</title>
  <style>
    html, body {
      width: 100%;
      height: 100%;
    }
    body {
      margin: 0;
      display: flex;
      justify-content: center;
      align-items: center;
      flex-direction: column;
    }
  </style>
</head>
<body>
<h1>{{.}}</h1>
</body>
</html>